Attachment for traction wheels



Patented Dec. 16, 1930 UNITED STATES PATENT- WALTER JONATHAN LEWIN, or MATHOIlItA, N WsoiI H WA ES, ansTnA LiA ATTACHMENT FOR App-licationfiled JuneVS, 1928, Seria1 No.

This invention, which relates; to improved attachments to one or both sides of the traction wheels of tractors, farm implements, and the like, consists of improved gripping mem 5 bers, which are applicable primarily to the traction wheels of farm tractors or farm implements, but are equally applicable to the bull traction wheels of harvesting machines, I and also to other traction wheels having metal rims or solid rubber tyres.

It is customary, at present, when tractors c are required to travel oversoft ground, to attach to the tread surface of the wheel-rims of said traction wheels, a series of spuds, to

enable such wheels to obtain a firm hold on the ground over which they are travelling. f'

In practice, however, it is found that these spuds, on the tread surface of the wheelrims', are not satisfactory when the wheels are trav- 0 elling over adhesive ground, as those portions of the wheel rims between the spuds soon become cloggedor packed with soil to both sides of the traction wheels, so that each 0 device will extend radially a requiredi dis-y tance beyond the wheel rim, and said spuds, in such a manner that each gripping member will readily enter and grip the soil as the wheels revolve, wheel slip being obviated by reason of the fact that no clogging of soi'L can take place between said gripping -mem-- bers. 1

My attachments may be readily applied to traction wheels having spuds secured to the tread surface of the wheels, so as to operate" in conjunction with said spuds, when the ve-' hicle is travellingover adhesive soil.

scribed, aided by reference tothe accompanying sheet of drawings, wherein Flg. 1 is a vlew in side elevation of a trac tor wheel wlth the ordinary spuds secured to the tread surface of the rim, and having my improved gripping members attached to the side of said wheel, to operate in conjunction *T A TIQ WHE LS esaeeaena inAustra'lia March i, 1928. r iwith the said spuds so as to eliminate wheel slip, y w, '7, r

"Fig; 2 is adetailflview (one-n enlarged scale) of a portion of a tractor wheelfitted with my improved Yang'le'iron gripping members secured tothe side of the same, vand vmeans for adjusting the position of said grip-t ping; members as and whenrequired';

' Fig. 3 isla viewin plan, and Fig. 4 a view tin sectional.elevation ofFig, 1.

spokes of'a well-known type of tractor wheel fitted with the ordinary cast metal spuds 3,

in staggered arrangement. r

Accordlng' to my' mvention, a series of secured to the tread surface of-the wheel rim In 'the drawings, '11 the rim and we.

angle iron gripping members tare detachably secured to the side of each traction wheel and in required spaced relationship, sot-hat each grip member will extend a required dis tance beyond the tread "surface ofthe wheel rim 1, and the spuds-thereon, as shown in the'drawi-ngs;

referred" to, are preferably, secured to the side o fthe wheel at an "angle as-shown. For

:firm'ly' heldin position a transverse bolt '8 whichrests upon the tread surface of the wheelrimfan'd is furnished atits free end with a hook 9 adapted to engage theopposite edgeor flange of the wheel rim (see Fig-lywhile the screw-threaded endof said fbolt pfasses through the abutment flange of ,1 the grlpping member 4 and is fitted with a The invention will now be more fully desecuring nut'lO. H r I I By this arrangement of fastening, the whole of the gripping members 4 can be readily and expeditiously fitted to, or removed from the side of quired. r

As seen in Figs.- 1 and 2 the gripping members 4 are arranged at a suitable angle in The-angle iron gripp'ing members 4', above this purp'ose,' a metal ring 5'is provided the wheel as and when reorder that their projecting ends will readily enter the soil as the wheel revolves and so prevent slippage.

As shown in Fig. 2 each gripping member 4 is secured to the side ofthe wheel in such a manner as to enable the length of its extending or overhanging portiomto beadjusted, and also; if-required,to alter or ad-' .1

just the angle of said gripping member."

For these purposes, each gripping member I 4 is furnished" with a series of adjustment i holes 11 at its outer end to, receive the screwed end of the hookedtransverse'bolt 8,

while a series of adjustment holes 12 are formed in the inner end of each gripping I member,-to' enablex'the bolt 7 to be passed of gripping members may sisting of a metalring detachably secured to.

through a selected hole 12 and throughone of a series'of adjustment the metal ring 5.

It will be understood that, although the n gripping members t are shown attached to one side of the wheel only, they may,-if'desired, be attached toboth: sides oi said wheel r inthe manner hereinbeforedescribed, or, in :3?

the case of ,a multiple rimmedlwheel, a series I claim holes 13 formed in :be provided on each side of eachriml 7 i 1,, An attachment fora traction wheel consistingof a,metalringdetachably secured to :oneside of the wheel, aseries of gripping members arranged-against the ring and the @rim of the wheel and projecting beyond the 4 rim of the wheel means' engaged invarious 7 positions of adjustment ofthegripping mem- 'bers and detachably engaged with the remote side of the wheel for-adjustably connecting each of the gripping members in positionand f i at the same-time permitting of a pivotal ,7

movement of eachv of said members, and means detachably engagedzzwith the inner U portions of the members and -the ring for holding themembers in various positions of adjustment,

- 2. An attachment foratraction wheel con-i A one side of a wheel and provided between" the spokes of thewheelwith-separate; series of openings, a series ofgrippin'g members 1 a -7 each provided near the respective end por-l tions withlseparate'series of openings hook bolts-engaged with the remote side otthe wheel rim and through one ofthe openings in the outer portions. of the gripping memand aligning openings in thefinnerportions of the-members and in f the ringifor fastening the members in the desired angular and radialadjustment. -f

. r WALTER JONATHAN'LEWIN.

.bers, and devices passing through fdesired H position of. 

